Method of prevention transport stress of pigs

FIELD: agriculture.

SUBSTANCE: invention relates to animal husbandry, in particular, to methods of prevention transport stress of pigs. The method consists in activation of physiological adaptation mechanisms by daily exposure of pulsed low-intensity infrared radiation on the skin surface in the zone of localisation of the biologically active centers (BAC) № 4, №23, №33, №37, №50, №59 with frequency of 600 Hz, with a capacity of 10 mW with exposure of 256 seconds to each center, ten days prior to transportation.

EFFECT: method enables to increase the level of BAC biopotential, reduce the loss of body weight during transportation and improve meat quality obtained after slaughter carcasses.

1 dwg, 2 tbl, 2 ex

 

The invention relates to animal husbandry, in particular to methods of prevention of transport stress pigs.

The closest prototype of the proposed method is a method for the prevention of transport stress animals by activating the physiological adaptive mechanisms, which consists in the stabilization of metabolism in the emergence of transport stress by feeding in a mixture with concentrated feed for 4-5 days before their transport to the dose 210-230 mg/kg body weight per day supplements, including, wt.%: bischofite 78,75-to 80.85; ascorbic acid (vitamin C) 0,15-0,25; glucose 19-21 (Patent RU №2153802, CL A01K 67/02).

The disadvantages of this method are:

- a great complexity in the preparation of food;

- the need to attract highly qualified specialists;

- the lack of effect in the prevention of transport stress.

The objective of the proposed method is to reduce the complexity, eliminating the use of highly qualified specialists and increase the efficiency of the method for the prevention of transport stress.

The problem is solved due to the fact that in the known method of prevention of transport stress involves the activation of physiological adaptation mechanisms, according to the invention the activation of the physiologically the adaptive mechanisms carried out by daily exposure to low-intensity pulsed infrared radiation at the skin surface in the zone of localization of biologically active centers (BAM) No. 4, №23, №33, №37, №50, №59 frequency of 600 Hz, 10 mW exposure 256 seconds on each centre ten days before shipment.

To clarify the essence of the proposed method are presented Figure 1.

The figure shows the biologically active centers:

No. 4 - dorso-medial line of the body between the last thoracic and first lumbar vertebrae.

No. 23 - half the distance between the lumbosacral articulation and maclolm.

No. 33 - in the center of the middle gluteal muscle at a distance of one palm width and 2 fingers width from dorso-medial line of the body.

No. 37 - three finger across Caudalie the middle of the posterior edge of the scapula and four palm width from dorso-medial line of the body.

No. 50 - midway between the knee and the heel bone.

No. 59 - ventral medial line, four finger across Caudalie breast bone.

A source of pulsed low-intensity infrared radiation served as a laser device "Mustang" with a wide range of wavelengths, the radiation frequencies from 80 Hz to 3000 Hz, the time variable exposure from 4 to 256 C. the Device has a keyboard set the frequency of the pulses of radiation and the exposure time, the potentiometer output power. The impact on the centres was carried out by magneto-laser nozzle MLE-1K, creating a pulse irradiation is their wavelength of 0.89 μm. The emission area of 6 cm2.

A biological effect in vivo when exposed to low-intensity laser radiation, which manifests itself primarily in increasing the blood circulation in the area of localization BANG№4, №23, №33, №37, №50, №59 and activate metabolism; stimulation of electrolytic metabolism in protoplasmic cells and cell regeneration by increasing ATP production, oxygen consumption, protein synthesis, nucleic acid and activation of numerous cytoplasmic enzymes, as well as a stimulating effect on the immune system.

Prior to exposure to the biologically active centers№4, №23, №33, №37, №50, №59 they had measured the level of the action potential and calculated the average. For measurement of biopotential biologically active centers (BAM) can be used by any device intended for carrying out of electroacupuncture or reading biopotential BANG the skin of humans and animals, for example devices of the type LAP.

10 days before the expected date of transportation of the animals to the place of slaughter was formed three groups of pigs of large white breed. The total number of animals in groups was 15 goals, at the age of 8-10 months, average weight 90-115 kg

First, before you can experience the animals were weighed and measured the level of biopotential BANG№4, №23, №33, №37, №50, №59.

Lane is the first group was the control.

Pigs of the second group 5 days prior to transportation subjected to daily impact on these BANG pulsed low-intensity infrared radiation frequency of 600 Hz, 10 mW exposure 256 seconds on each centre.

Pigs of the third group stimulation BANG was carried out 10 days before the expected date of transportation in the same modes and doses.

Before experiments in animals of all groups were measured level of biopotential of these centers and conducted their weighting. All manipulations were done in the morning before feeding.

Transportation was carried out using specially equipped for the transportation of animals vehicle brand MAZ at a distance of 86 km to the place of slaughter for meat.

After transporting and unloading animals carried their weigh-in, then after slaughter studied meat quality carcasses (mass of steam carcass yield carcass, carcass weight, carcass yield).

Example 1. Kracka live weight to 104.8 kg was carried out measurement of the bioelectric potential of the milliammeter type LAP in six biologically active sites of skin№4, №23, №33, №37, №50, №59, the average biocapacity amounted to 60.3 µa. Next five days prior to transport to the skin surface in the area of localization of each day worked by means of a laser apparatus "Mustang" frequency of 600 Hz,10 mW exposition of 256 seconds. After five days of stimulation BANG average biocapacity in six centres was 65.5 MCA, live weight 105,8 kg increase in the level of biopotential biologically active centers indicates activation of physiological adaptation mechanisms due to stimulation. After transportation average biocapacity was 70.3 MCA, live weight 103,5 kg

Next, it is established that the mass of steam carcass was 69,8 kg, the output of the carcass of 67.4%, slaughter weight 74,1 kg, slaughter yield 71.6 per cent.

Example 2. Kracka live weight 101,6 kg was carried out measurement of the bioelectric potential of the milliammeter type LAP in six WHAM skin№4, №23, №33, №37, №50, №59, the average biocapacity in six centres accounted for 61.6 µa. Then ten days before transport to the skin surface in the area of localization of each day worked by means of a laser apparatus "Mustang" frequency of 600 Hz, 10 mW exposition of 256 seconds. After ten days of stimulation of biologically active centers level of biopotential was 70.3 MCA, live weight 104,4 kg increase in the level of biopotential biologically active centers indicates activation of physiological adaptation mechanisms due to stimulation. After transportation average biocapacity was 72.6 MCA, live weight 103,0 kg. Further established that the mass of steam carcasses, were the and 70,6 kg, the output of the carcass 68,5%, slaughter weight and 73.2 kg, slaughter yield increase of 71.1%.

In other animals of all experimental groups in a similar manner was measured biopotential six biologically active sites of skin№4, №23, №33, №37, №50, №59, determined by its average value, the animals were weighed before and after transportation, installed steam mass carcass yield carcass, carcass weight, carcass yield.

Data on the effect of daily stimulation of biologically active centres skin№4, №23, №33, №37, №50, №59 pulsed low-intensity infrared radiation on the dynamics of the level of biopotential, body weight and parameters of the meat productivity of pigs are presented in table 1.

Table 1.
Indicatorsgroup 1 (control)group 2 (5 days)group 3 (10 days)
The number of animal heads555
The level of biopotential BANG to stimulation, MCA61,1±1,5660,6±2,2361,8±1,92
The level of biopotential BANG after stimulation, MCA 61,6±1,8765,3±2,3170,3±2,01*
The level of biopotential BANG after transportation, MCA75,3±1,8970,5±2,4671,8±1,80
Live weight prior to stimulation, kgto 96.8±2,78of 98.3±2,64to 101.1±2,95
Live weight after stimulation, kgof 99.3±2,67a 99.6±2,48103,3±2,32
Live weight after transportation, kg93,8±1,88the 97.6±2,23101,9±1,91*
The steam mass carcass, kg65,8±2,3069,3±2,1673,8±2,12*
The output of the carcass, %69,670,672,8
Slaughter weight, kg68,6±1,9272,4±2,31to 75.8±1,88*
Slaughter yield, %72,673,3 74,6
Differences statistically significant compared with control: * p<0,05.

Thus, the table shows that the most effective is the daily stimulation of biologically active centers of low-intensity infrared radiation frequency of 600 Hz, 10 mW exposure 256 seconds on each centre within 10 days prior to shipment. This enables physiological adaptation mechanisms, resulting in increased levels of biopotential BANG, reduced loss of body weight during transportation and improve meat quality obtained after slaughter the carcasses.

Table 2.
The complexity of the preventive methods of transport stress pigs
MethodsComplexity, min
Known75
Offer35

When using the proposed method reduces complexity, eliminates the availability of highly qualified specialists and improving the efficiency of the prevention of transport stress pigs.

Method of prevention is transport stress pigs, consisting in the activation of physiological adaptation mechanisms, characterized in that the activation of physiological adaptation mechanisms implemented by daily exposure to low-intensity pulsed infrared radiation at the skin surface in the area of localization of biologically active centers (BATC) №4, №23, №33, №37, №50, №59 frequency of 600 Hz, 10 mW exposure with 256 on each centre ten days before shipment.



 

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